Wireless not working in Ubuntu 12.04

**Joleen** · August 22nd, 2013

True! so this is a hardware thing!

**wildmanne39** · August 23rd, 2013

If you post the output of the command in my last post we can look and see.
Thanks

**Joleen** · August 23rd, 2013

here is the output

Code:

lo        no frequency information.


wlan0     11 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Current Frequency:2.437 GHz (Channel 6)


eth0      no frequency information.

**wildmanne39** · August 23rd, 2013

That is what I figured your wireless device is only capable of working on channels 1 thru 11 there is nothing wrong with it, it is just made that way.
Thanks

**lamont2** · September 2nd, 2013

Re: Wireless not working in Ubuntu 12.04

Please do:
Code:
sudo apt-get purge bcmwl-kernel-source broadcom-sta-common broadcom-sta-source
Code:
sudo apt-get install linux-firmware-nonfree
Code:
sudo modprobe b43
Then if it does not come on try:
Code:
sudo rfkill unblock all
The wl driver will work with your device but I believe that the b43 driver works better IMO.
Thanks

this turns my wifi on,but if i shut laptop off it wount work unless i do this again

**wildmanne39** · September 2nd, 2013

lamont2 who's device are you saying can use the b43 driver?, also with the last person that posted it will not make any difference because their device still is not capable of working on channels above 11.

**UOS0013** · September 13th, 2013

Ok, my results are below. Any help?

Code:

turtlebot@turtlebot:~$ cat /etc/lsb-release; uname -aDISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.3 LTS"
Linux turtlebot 3.2.0-53-generic #81-Ubuntu SMP Thu Aug 22 21:01:03 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
turtlebot@turtlebot:~$ lspci -nnk | grep -iA2 net
02:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01)
    Subsystem: AzureWave Device [1a3b:2110]
    Kernel driver in use: ath9k
--
03:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8162 Fast Ethernet [1969:1090] (rev 10)
    Subsystem: ASUSTeK Computer Inc. Device [1043:200f]
turtlebot@turtlebot:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 13d3:3393 IMC Networks 
Bus 001 Device 004: ID 13d3:5188 IMC Networks 


turtlebot@turtlebot:~$ iwconfig
lo        no wireless extensions.


wlan0     IEEE 802.11abgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=16 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

turtlebot@turtlebot:~$ rfkill list all
0: asus-wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: asus-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
3: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no


turtlebot@turtlebot:~$ lsmod
Module                  Size  Used by
snd_hda_codec_hdmi     32474  1 
snd_hda_codec_realtek   224173  1 
parport_pc             32866  0 
bnep                   18281  2 
ppdev                  17113  0 
rfcomm                 47604  12 
binfmt_misc            17540  1 
snd_hda_intel          33719  3 
snd_hda_codec         127706  3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep              17764  1 snd_hda_codec
snd_pcm                97275  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi           13324  0 
snd_rawmidi            30748  1 snd_seq_midi
snd_seq_midi_event     14899  1 snd_seq_midi
ath3k                  12961  0 
arc4                   12529  2 
joydev                 17693  0 
snd_seq                61929  2 snd_seq_midi,snd_seq_midi_event
ath9k                 132428  0 
mac80211              506862  1 ath9k
btusb                  18332  2 
ath9k_common           14053  1 ath9k
snd_timer              29990  2 snd_pcm,snd_seq
ath9k_hw              411239  2 ath9k,ath9k_common
bluetooth             180113  24 bnep,rfcomm,ath3k,btusb
snd_seq_device         14540  3 snd_seq_midi,snd_rawmidi,snd_seq
uvcvideo               72627  0 
videodev               98259  1 uvcvideo
v4l2_compat_ioctl32    17128  1 videodev
asus_nb_wmi            12710  0 
asus_wmi               24456  1 asus_nb_wmi
sparse_keymap          13890  1 asus_wmi
ath                    24067  3 ath9k,ath9k_common,ath9k_hw
snd                    79041  16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
psmouse                97519  0 
serio_raw              13211  0 
soundcore              15091  1 snd
cfg80211              205774  3 ath9k,mac80211,ath
mac_hid                13253  0 
snd_page_alloc         18529  2 snd_hda_intel,snd_pcm
mei                    41616  0 
lp                     17799  0 
parport                46562  3 parport_pc,ppdev,lp
i915                  478239  3 
drm_kms_helper         46978  1 i915
drm                   241971  4 i915,drm_kms_helper
wmi                    19256  1 asus_wmi
i2c_algo_bit           13423  1 i915
video                  19651  1 i915

**varunendra** · September 13th, 2013

Originally Posted by UOS0013

Code:

turtlebot@turtlebot:~$ lspci -nnk | grep -iA2 net
02:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01)
    Subsystem: AzureWave Device [1a3b:2110]
    Kernel driver in use: ath9k

Your wireless card is using ath9k driver, which seems to be problematic currently. Please follow this post to try a few things, and if they don't work, then compile and install a newer version as suggested in the same post.